Rare Hidden Ice Chamber silver plated cocktail shaker C1930

A rare and extremely unusual cocktail shaker made in England in the early part of the 20th century. Of particular interest is the double skinned construction of the shaker. The base unscrews to reveal a compartment for ice

Once securely closed it allows the home mixologist to create the perfect cocktail and pour the drink out as and when desired, keeping it cool but without the drink being diluted by the melting ice within the shaker. A clever mechanism for which a patent was applied for as can be seen on the side and base. A truly ingenious mechanism which makes this one of the rarest period shakers from this era..